Envelop



E. U. KIMBARK.

-ENVELOP.

APPLICATION FILED JAN.26. 1920.

Patented Sept. M,

EUGENE U. KIMIBARK, OF EVANSTON, ILLI NOIS.

ENVELOP.

Specification of Letters Patent.

Patented Sept. 14, 1920.

Application filed Jenner-5 .26, 1920. Serial No. 354,048.

1 0 all whom, it may concern:

Be it known that I, EUGENE U. KIMBARK, a citizen of the United States, residing at Evanston, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Envelope, of which the following is a specification.

This invention relates to envelope for mailing purposes, and particularly to envelops adapted to carry in one package mailing matter designated first class, and also accompanying mailing matter of a lower class.

It has for its object to provide an improved envelop of this type which is simple in character, and easily manufactured, if necessary,'without the use of specially designed dies or machinery. A further object is to provide an envelop in which the separate compartment for the first class matter is automatically formed when the envelop is closed for mailing.

The invention consists further in the novel constructions and arrangements, hereinafter described and claimed, for carrying out the above stated objects, and such other objects as may appear from the following description of a preferred embodiment of the invention illustrated in the accompanying drawing, wherein:

Figure 1 is a plan view of the blank from which the envelop is formed.

Fig. 2 is a plan view of the envelop before it is closed and sealed; and

Fig. 3 is a perspective view of the envelop when closed and sealed and ready for mailing.

Like characters of reference relate to like parts in the several figures of the drawing.

The envelop is formed from a blank 10 having a main body portion 11, side flaps12 and 13, and end flaps 14 and 15. The side flaps 12 and 13 are folded along the dotted lines 16 and sealed or otherwise secured together alongtheir meeting edges at 17 as shown in Fig. 2. These flaps form with the body portion 11 a tubular sheath or cover 18, adapted to inclose the mailing matter. The sheath 18 is made sufficiently long, so as to inclose an article of first class mailing inatter and the accompanying piece of mailingmatter of second or lower class when placed adjacent each other in theenvelop. The sheath or cover 18 is adapted to be folded transversely along a line 19 to form two pockets 20 and 21, the formerfor the first class mailing matter and the latter "for the accompanying mailing matter of a lower class. Preferably, the envelop is marked or scored along the line 19 so that the same may be more readily folded.

The flap 1 1 is coated with gum or any suitable adhesive by means of which the pocket 20 may be secured in its folded relation, as shown in Fig. 3. This is accomplished by sealing the tab 14: to an intermediate portion 22 of the pocket 21. \Vhen sealed in this position it is impossible to gain access to the pocket 20. If desired, the

ends of the flaps 12 and 13 adjacent the tab 14 may be coated on their outer surfaces with an adhesive 23. This adhesive is adapted to seal the face of the pocket 20 against the pocket 21, and thus more securely seal the open end of the pocket 20 against the pocket 21. The blank may be provided, if desired, with a line of adhesive 24, adjacent or along the line 19 extending across the body 11, on the flaps 12 and 13 or both, so that when the blank is folded, as shown in Fig. 2, the sheath will be sealed transversely.

The flap 15 is provided with a separable fastener 25 of any suitable design, adapted to close the flap over the open end of the pocket 21 in such a manner that the contents of the pocket 21 may be inspected by the postal authorities if desired.

By means of this improved envelop it is possible to mail in a single package an article of first class mailing matter, such as a letter, and another article requiring less than first class postage to which the letter relates or with which it is desired to accompany the article of first class mailing matter. This avoids the inconvenience often resulting from the receipt of two relating articles of mail received in different packages and at different times.

Preferably the pocket 20 for the first clas mailing matter bears a suitable legend calling attention to the fact that the pocket contains separate mailing matter. If required by the postal regulations, mailing addresses may be placed both on the pocket 20 in the space 26, for instance, and also on the pocket 21. If desired, 'a window may be placed in the pocket 20 in the space 26, as shown in dotted lines at 27.

I claim:

1. An envelop for the transmission in one package of first class and inferior class postal matters consisting of a single fiat tubular sheath open at both ends, provided at each end with a flap, and folded upon itself along a transverse line nearer one end of the sheath than the other, to form two sep-- arate receptacles which are wholly free from each other except along the line of fold, the flap on the shorter receptacle being provided with an adhesive substance adapting it to be sealed down upon the longer receptacle and the flap of the longer receptacle being provided with a non-sealing closing device.

2. An envelop for the transmission in one package of first class. and inferior class postal matters consisting of a single flat tubular sheath open at both ends and folded upon itself along a transverse line nearer one end of the sheath than the other to form two separate receptacles which are entirely free from each other except along the line of fold, an end flap on the shorter portion adapted to be scaled down upon the longer portion, and the latter being provided with non-sealing closing means.

EUGENE U. KIMBARK. 

